Electromagnetic valve
US-2024011575-A1 · Jan 11, 2024 · US
Holding circuit, electromagnetic valve, valve selector, and flow controller
US9103464B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9103464-B2 |
| Application number | US-201113885521-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 10, 2011 |
| Priority date | Dec 14, 2009 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
Relating to a solenoid used as a solenoid valve, a holding circuit and the like for suppressing the occurrence of back electromotive force, and preventing magnetic flux density from deterioration, without a major change of the conventional circuit constitution, is provided. A capacitor is connected in parallel with a resistance which is connected in series to a solenoid. The solenoid is driven at rated voltage by making a first switch and a second switch ON state and the solenoid is kept at holding voltage by making the first switch OFF state. The capacitor slows down the speed of change of applied voltage to the solenoid from the rated voltage to the holding voltage so that the back electromotive force of the solenoid is absorbed, which prevents the extinguishment of magnetic flux density.
First claim
Opening claim text (preview).
The invention claimed is: 1. A holding circuit comprising a solenoid and a first resistor which are serially connected, wherein the solenoid is driven at a rated voltage and its drive state is held at a holding voltage lower than the rated voltage, a first switching unit that is connected in series with the solenoid and the first resistor, and configured to switch between a state where the solenoid is driven and the state where the solenoid is not driven; a second switching unit…
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Classifications
- F16K31/0675Primary
Mechanical Engineering · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9103464B2 cover?
- Relating to a solenoid used as a solenoid valve, a holding circuit and the like for suppressing the occurrence of back electromotive force, and preventing magnetic flux density from deterioration, without a major change of the conventional circuit constitution, is provided. A capacitor is connected in parallel with a resistance which is connected in series to a solenoid. The solenoid is driven …
- Who is the assignee on this patent?
- Teramoto Youichi, Sakamoto Kazuhira, Kawaguchi Toshikazu, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F16K31/0675. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).